/*
    button.h
    Copyright (C) 2007 Acekard, www.acekard.com
    Copyright (C) 2007-2009 somebody
    Copyright (C) 2009 yellow wood goblin

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef _AKUI_BUTTON_H_
#define _AKUI_BUTTON_H_


#include "rectangle.h"
#include "window.h"
#include "renderdesc.h"
#include "bmp15.h"


namespace akui
{

class cButtonDesc;

class cButton : public cWindow
{

public:
    enum State
    {
        up = 0,
        down = 1
    };

    enum Style {
        single = 0,
        press = 1,
        toggle = 2
    };

    enum Alignment
    {
      left,
      center,
      right
    };

    cButton( s32 x, s32 y, u32 w, u32 h, cWindow * parent, const std::string & text );

    ~cButton();

public:

    void draw();

    cWindow& loadAppearance(const std::string& aFileName );

    bool process( const cMessage & msg );

    State state() { return _state; }

    void setTextColor( COLOR color ) { _textColor = color; }

    COLOR textColor() { return _textColor; }

    void setStyle( Style style ) { _style = style; }

    Style style() { return _style; }

    void setAlignment( Alignment alignment ) { _alignment = alignment; }

    Alignment alignment() { return _alignment; }

    void onPressed();

    void onReleased();

    void onClicked();

    Signal0 clicked;

    Signal0 pressed;

protected:

    bool processTouchMessage( const akui::cTouchMessage & msg );

    bool _captured;

    State _state;

    COLOR _textColor;

    cButtonDesc * _renderDesc;

    Style _style;

    Alignment _alignment;

};

// form desc，只负责画背景
class cButtonDesc : public cRenderDesc
{
public:
    cButtonDesc();

    ~cButtonDesc();

public:

    cButtonDesc & setButton( cButton * button )  { _button = button; return *this; }

    void draw( const cRect & area, GRAPHICS_ENGINE engine ) const;

    void loadData( const std::string & filename );

protected:

    cButton *  _button;
    cBMP15 _background;
    COLOR _textColor;
};
}


#endif//_AKUI_BUTTON_H_